Ice pack



FIG. 1 is a top, front, right perspective view of an ice pack showing our new design;

FIG. 2 is a front view thereof;

FIG. 3 is a rear view thereof;

FIG. 4 is a right side view thereof;

FIG. 5 is a left side view thereof;

FIG. 6 is a top view thereof; and,

FIG. 7 is a bottom view thereof.

The uneven-length broken lines immediately adjacent to the shaded area represent unclaimed boundaries of the design. The even-length broken lines showing the remainder of the ice pack are for environmental purposes only and form no part of the claimed design. 

CLAIM The ornamental design for an ice pack, as shown and described. 